X509 certificate verification - cert4android

BTW, I’ve tried to delete one certificate that I no longer need as I created a new FQDN for webmail. Each time I try to delete that certificate from the GUI, it processes and then gives an error.

Task module/traefik1/delete-certificate failed

module/traefik1/delete-certificate

<3>Timeout after about 30 seconds. Certificate not obtained for
… full list of FQDNs